Dot (Unix)

Dot (Unix)

. called the dot command is used to execute its first argument, a file. It's possible to specify arguments in a second argument. The first argument file does not have to be executable, but must be accessible via a directory defined in the PATH environment variable. The dot command is often used to define environment variables that are accessible within the current process. In contrast to file executed directly as an executable, there won't be a new process opened and the environment definitions defined within apply to the current process or the current shell. The dot command should not be confused with the dot file.

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v · d · eUnix command-line interface programs and shell builtins (more)
File system
cat · cd · chmod · chown · chgrp · cksum · cmp · cp · dd · du · df · file · fsck · fuser · ln · ls · lsattr · lsof · mkdir · mount · mv · pax · pwd · rm · rmdir · size · split · tee · touch · type · umask
Processes
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User environment
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Text processing
awk · banner · basename · comm · csplit · cut · dirname · ed · ex · fmt · head · iconv · join · less · more · paste · sed · sort · spell · strings · tail · tr · uniq · vi · wc · xargs
Shell builtins
alias · echo · expr · printf · sleep · test · true and false · unset · wait · yes
Networking
dig · inetd · host · ifconfig · netstat · nslookup · ping · rdate · rlogin · netcat · ssh · traceroute
Searching
find · grep · locate · whatis · whereis · which
Documentation
apropos · help · info · man
Miscellaneous
bc · dc · cal · date · lp · lpr
List of Unix utilities

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